To make a 100 mM stock solution with 250 mg of β-Estradiol (molecular weight 272.38 g/mol), dissolve it in 9.18 mL of ethanol. This is calculated as (0.250 g / 272.38 g/mol) / 0.1 mol/L = 0.00918 L or 9.18 mL. This can be done directly in a clean, dry glass bottle large enough to hold and mix the solution.
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A propos de cet article
biological source
synthetic (organic)
Quality Segment
product line
BioReagent
assay
≥98% (HPLC)
form
powder
technique(s)
cell culture | mammalian: suitable, single cell analysis: suitable
mp
176-180 °C (lit.)
solubility
ethanol: 50 mg/mL, clear, colorless
shipped in
ambient
storage temp.
room temp
SMILES string
O[C@H]1CC[C@@]2([H])[C@]3([H])CCC4=CC(O)=CC=C4[C@@]3([H])CC[C@@]21C
InChI
1S/C18H24O2/c1-18-9-8-14-13-5-3-12(19)10-11(13)2-4-15(14)16(18)6-7-17(18)20/h3,5,10,14-17,19-20H,2,4,6-9H2,1H3/t14-,15-,16+,17+,18+/m1/s1
InChI key
VOXZDWNPVJITMN-ZBRFXRBCSA-N
Gene Information
human ... ESR1(2099), ESR2(2100), ESRRA(2101), ESRRB(2103), GPER(2852), SERPINA6(866)
mouse ... Esr1(13982), Esr2(13983), Esrra(26379)
rat ... Afp(24177), Ar(24208), Esr1(24890), Esr2(25149), Shbg(24775)
General description
β-Estradiol or estradiol-17 β (E2) is secreted majorly by the large preovulatory follicles in the ovary. In addition, estradiol can be synthesized de novo from cholesterol have androgens synthesized from cholesterol. The aromatization of androgen by enzyme aromatase (P450arom) results in the β-estradiol production.
Application
- as a component of Dulbecco′s modified Eagle medium (DMEM) for culturing mammary tumor cells
- as a oestrogenic compound for testing neuroprotective effects
- as a component of medium199 for culturing oocytes
Biochem/physiol Actions
Physical form
Preparation Note
1 of 1
Cet article | |||
|---|---|---|---|
| description BioReagent, powder, suitable for cell culture | description analytical standard | description ≥98% | description powder, γ-irradiated, suitable for cell culture |
| biological source synthetic (organic) | biological source - | biological source synthetic (organic) | biological source synthetic (organic) |
| assay ≥98% (HPLC) | assay - | assay ≥98% | assay ≥98% (HPLC) |
| product line BioReagent | product line - | product line - | product line BioXtra |
| Quality Level 200 | Quality Level 200 | Quality Level 300 | Quality Level 200 |
| technique(s) cell culture | mammalian: suitable, single cell analysis: suitable | technique(s) HPLC: suitable, gas chromatography (GC): suitable | technique(s) cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable |
| form powder | form - | form powder | form powder |
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Mot-clé
Danger
Classe de stockage
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
EPI (équipement de protection individuelle)
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
Codes de danger
Mentions de précaution
Hazard Classifications
Aquatic Chronic 1 - Carc. 2 - ED ENV 1 - ED HH 1 - Lact. - Repr. 1A
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Hello, you mention reconstitution in ug/ml. How much ethanol do I need to dissolve 250mg in to get a 100mM stock solution? Would I be able to do it directly in the glass bottle?
1 answer-
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Can Estradiol/ethanol solutions be sterile filtered?
1 answer-
Yes. stock solutions in ethanol may be sterile filtered. However, cellulose-based filter membranes are not recommended for use with ethanol. Please see the link below to review additional information regarding filter membrane compatibility with commonly used solvents:
https://www.sigmaaldrich.com/technical-documents/technical-article/analytical-chemistry/filtration/chemical-compatibility-of-filter-componentsHelpful?
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Hello, I would like to check the solubility of this product in DMSO. Best,
1 answer-
The solubility of this product in DMSO has not been determined. However, as per the literature, the β-Estradiol is soluble in DMSO at 20 mg/ml.
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after dissolving the β-Estradiol in ethanol , whats the tempreture to store the item in ?
1 answer-
The storage or stability conditions once the compound is in solution is not determined. General recommendations for β-Estradiol are to protect from light, and store at -20C or at 2-8C in a degassed solution. Solutions stored in this manner should remain stable in the range of 1 month - 1 year.
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How diluit for concentration of the 100ng/mL
1 answer-
β-Estradiol is soluble in absolute ethanol at 50 mg/mL (See E8875). Preparing a 100 ng/mL solution would require serial dilutions.
Start with a 1 mg/mL (1000 ug/mL) stock in ethanol.
Dilute 10 uL (10 ug = 10,000 ng) of this stock with 9.990 mL to achieve a 1000 ng/mL solution. This can be diluted with medium or buffer.
Dilute 1 mL of this with 9 mL to the final concentration of 100 ng/mL.Helpful?
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